Sportsman's double ( Dirty joke)

I met an older woman at a bar last night. She looked
pretty good for a 60-year-old. In fact, she wasn't too
bad at all, and I found myself
thinking she probably
had a really hot daughter. We drank a couple of beers,
and she asked if 'd ever had a Sportsman's Double?
What's that? I asked. It's a mother and daughter
threesome, she said. As my mind began to embrace
the idea, and I wondered what her daughter might
look like, I said, No, I haven't: We drank a bit more,
then she said with a wink, 'tonight's your lucky night
We went back to her place. We walked in. She put on
the hall light and shouted upstairs:

 "Mom.you still
awake?